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Koi Angelfish

Pterophyllum scalare var. Koi

The Koi Angelfish mimics the tricolor (white, black, and orange) of Japanese carp. This South American cichlid is a breeding masterpiece, but its splendor is precarious. If not supported by a diet heavily based on crustaceans and carotenes, the orange fades in a few weeks leaving a grayish and sickly fish. It requires very tall tanks (minimum 50 cm) to allow the development of the sail fins without them crumpling on the bottom.

Family
Cichlidae
Origin
Varietà selezionata artificialmente. La forma selvatica è originaria del bacino dell'Amazzonia.
Tank use
Used in 0 tanks
Temperature

24 °C - 28 °C

pH

6 - 7.5

Water type

Freshwater

Tank level

Middle

Adult size

15 cm

Description

Color Fading (The False Promise Futile Deaf Mute):

The bright orange you see in the store is chemically pumped. In your aquarium, without astaxanthin-enriched foods, the fish will turn white or yellowish in 3 weeks. Mandatory to alternate live food (Brine shrimp) and color-enhancing granules.

Care and observations

Intestinal Collapse (Hole in the Head Disease Futile Blind):

Extreme genetic selection has weakened their digestive system. If you feed them poor-quality frozen bloodworms or keep them under 26 degrees, they will develop intestinal Flagellates (Hexamita). They will stop eating, expel long white stringy feces, and develop infected holes on their head before starving to death.

Fish profile

Temperament
Territoriale. Forma coppie molto aggressive durante la riproduzione.
Diet
Carnivoro. Necessita di gamberetti, artemia e mangimi ricchi di astaxantina per il colore arancione.
Tank level
Middle
Adult size
15 cm
GH
2 dGH - 15 dGH
KH
n/a
TDS
n/a
Conductivity
n/a

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.